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7. Maintenance
This section contains information and procedures for solving possible problems with the FOXESS hybrid
inverters and provides you with troubleshooting tips to identify and solve most problems that can occur.
7.1 Alarm List
The inverter will reconnect to the grid after the grid is
restored.
If the fault recurs, please contact FOXESS Customer
Service for further assistance.
DC Component Current
Fault
Wait for the inverter to return to normal.
If the fault recurs, turn off the AC and DC side
switches, wait for 10 minutes, and then turn on the
AC and DC switches in turn to restart the inverter.
If the fault still exists, please contact FOXESS
Customer Service for further assistance.
The fault is caused by excessive parasitic
capacitance due to poor light or moist air. After the
environment improves, the inverter will reconnect to
the grid.
If the environment is normal, check whether the
insulation of the AC and DC cables is good.
If the fault still exists, please contact FOXESS
Customer Service for further assistance.
Leakage Current Static
Fault
The inverter will reconnect to the grid after the grid is
restored.
If the fault recurs:
1. Check whether the protection parameter settings
meet the requirements through the APP.
2. Measure the actual grid voltage, confirm that the
grid voltage and frequency of each phase do not meet
the grid-tied requirements, and contact the local
power company for solutions.
If the fault still exists, please contact FOXESS
Customer Service for further assistance.
Grid Phase Volt
Over-limit
Grid Line Volt Over-limit
Inverting Current
Imbalance
Inverting Hardware
Overcurrent
The inverter will reconnect to the grid after the grid is
restored.
If the fault recurs, please contact FOXESS Customer
Service for further assistance.
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